Spectacles



CHRIS BERGSVIK, OFYANKTON, SOUTH' DAKGTA.

Y SPECTACLES;

Speccatioxi of Letters Patent.

Patented een 15, 19193 Application filed March 24, 1919. Serial N o. 284,736.y

:To all fwwm it may concern:

-iinents in spectacles of drawing Be it known that I, CHRIS BERGSVIK, a citizen of the United States, residing at Yankton, South Dakota, have invented eertain new and useful Improvements in Spec tacles, of which the following is a specification.

My present invention relates to improvethe type embodying a pair of lenses which are pivotally connected With the speetacleframe and capable of being turned up out when not required.

Thel invention relates particularly to spectacles designed for persons requiring' lenses for reading only or close Work and aims to provide a simple, economical and durable construction in which vthe lenses, when turned down will be in proper position and when turned up out of the Way will not be elevated to such a degree asto be unsightly. The invention further aimsto provide a construction in which the numbei1 of frame parts observable will be reduced to a minimum. I

With these and other objects in view the invention includes the novel features oz oonstruotion and arrangement and combination of parts hereinafter described and particularly dened `by the appended claims, an embodiment of my invention being` illustrated inl tbe accompanying drawing, in which, I Figure l is a side elevation of a, pair of spectacles en'ibodying my invention.

Fig. 2 is a view looking toward the left (Fig. l). y

:Figa 3 is a plan View, and,

v Fig. 4 a vertical section through the left hand lens. 1

Referring by reference characters to this the numerals l, l, designate the lenses which are made in the shape of half lenses with substantially straight upper edges and are provided with encircling frames 2 which are connected rigidly together by a bridge vpiece 3.

A supplemental or carrying frame is pro vided Which has portions 4a which are substantiall y straight and have their outer ends connected" by the 'usual hinges at the 'teni-- of the line of vision,

ples'. The inner or'adjaeent ends of the portions la are curved or offset as indicated at 4c and are connected to or carry the nose piece 6. Y

lt will be understood and 6 may be made in suitably shaped, or of aplurality of pieces'A suitably connected, as desired.

The lens frames are pivotally connected at their upper parts to the or members la and in order to hold the upper'frame bars of the lenses in substantial alinement with the bars or po tionsia'so as te give the ap n pearance of a single bar both to the' wearer' and the' observers, i connect 'each straight frame portion 4 at each end to theveorresponding portion of the lens frame by a lling-e connection. This binge .eonneetion prefer to make in the forni of an eye secured: to one oit' the parte, for example and en.- y circling 'the other part, to Wit7 the straight upper portion 2a of the lens frame. The lenses are notched at each end to Ina-lie space or'these eyes.

To hold the lenses in either a depressed or lowered position for close .vork, as show.m full lines in Fig. l, or in an elevated po tion as'sliovvn in dotted lines provid spring 8 which may be .in the form of a sion spring'having one end coinieeted to t eye-glass frane as for example, ons oi the bridge :e and havin'fY the oi. end secured to 7 -projeetiofi .fl ca ed bl nose piece, the l .ring being so arranged a bold the es Atranne the limit o. movement in Ier direction. Movement either direction is limited by the eye-glass frame contacting with the hinge inenrbeeis on the carrying frame.

For convenientev in turning or manipo- Iating the lenses l'provide a extension l0 at one end connected with the lens frs and having a knurled knob l0, i

that the partsfla, a one Integral pieee,

Having thus described my invention.

a primary or earryi piece and temples ai straight intermedias;

having` substanand eyes secured te the secondary frame comprising,

straight portions of one of Said frames near each end thereof and engaging corresponding portions o theotheL irzune.

2. n combination, n primary 'rmhe hm'-y ing" n nose piece and temples and having straight intermediate portions, w secondary trame eoniprising half iene carrying ineinhels having straight portions und zt connecting bridge, eyes forming hinge meer connecting Said straight Qortions of on frame with those of the other. e' prodieetion on the nose piece, and a spring connecting;- sztidprojeetion with Suid bridge.

1n testimony whereof, I afix my signi'V ture.

CHRIS BERGER/THQ. 

